Apparatus

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sensors Mode-S transponder

899117

ICAO 24-bit transponder address · allocated to Taiwan

Currently assigned to B-18118 · AIRBUS A-321neo

Hex
899117
Octal
42310427
Decimal
9,015,575
Country
TW
Tail
B-18118
Type
A21N
Broadcasting now · callsign CAL793 · 21,150 ft
Flights observed
178
Distinct callsigns
20
Country
TW
Last broadcast
1h ago

Current position

899117 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 899117 falls within the block assigned to Taiwan (TW) by ICAO Annex 10, Volume III. Every aircraft registered in Taiwan receives a permanent address from this block at the time of registration; the address stays with the airframe even if the aircraft is re-registered to a different operator within the country.

Callsign history 20 distinct

Callsign Airline Flights Last seen
CAL107 China Airlines 10 2026-05-19
CAL106 China Airlines 9 2026-05-18
CAL189 China Airlines 8 2026-05-29
CAL852 China Airlines 7 2026-05-25
CAL851 China Airlines 7 2026-05-25
CAL129 China Airlines 7 2026-05-21
CAL188 China Airlines 5 2026-05-21
CAL128 China Airlines 5 2026-05-21
CAL793 China Airlines 4 2026-05-30
CAL179 China Airlines 4 2026-05-26
CAL178 China Airlines 4 2026-05-26
CAL155 China Airlines 4 2026-05-27
CAL151 China Airlines 4 2026-05-28
CAL112 China Airlines 4 2026-04-29
CAL108 China Airlines 4 2026-05-16
CAL909 China Airlines 3 2026-05-23
CAL756 China Airlines 3 2026-05-22
CAL755 China Airlines 3 2026-05-22
CAL521 China Airlines 3 2026-05-11
CAL154 China Airlines 3 2026-05-26

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-30 CAL793 TPE → HAN May 30, 07:10 UTCMay 30, 07:40 UTC30m
2026-05-30 CAL602 HKG → TPE May 30, 02:30 UTCMay 30, 03:45 UTC1h 15m
2026-05-29 CAL601 TPE → HKG May 29, 23:45 UTCMay 30, 01:05 UTC1h 20m
2026-05-29 CAL789 TPE → DAD May 29, 07:05 UTCMay 29, 13:00 UTC5h 55m
2026-05-29 CAL189 PUS → TPE May 29, 00:15 UTCMay 29, 05:20 UTC5h 5m
2026-05-28 CAL794 HAN → TPE May 28, 11:15 UTCMay 28, 13:55 UTC2h 40m
2026-05-28 CAL793 TPE → HAN May 28, 07:00 UTCMay 28, 09:20 UTC2h 20m
2026-05-28 CAL151 NGO → TPE May 28, 03:15 UTCMay 28, 03:40 UTC25m
2026-05-28 CAL151 NGO → TPE May 28, 01:15 UTCMay 28, 01:55 UTC40m
2026-05-27 CAL150 TPE → NGO May 27, 09:35 UTCMay 27, 12:05 UTC2h 30m
2026-05-27 CAL155 NGO → TPE May 27, 06:09 UTCMay 27, 06:34 UTC25m
2026-05-27 CAL155 NGO → TPE May 27, 04:09 UTCMay 27, 04:49 UTC40m
2026-05-26 CAL154 TPE → NGO May 26, 23:54 UTCMay 27, 02:19 UTC2h 25m
2026-05-26 CAL179 TAK → TPE May 26, 10:34 UTCMay 26, 12:54 UTC2h 20m
2026-05-26 CAL178 TPE → TAK May 26, 07:05 UTCMay 26, 09:19 UTC2h 15m
2026-05-26 MDA992 - May 26, 04:10 UTCMay 26, 05:20 UTC1h 10m
2026-05-26 MDA991 - May 26, 01:05 UTCMay 26, 01:34 UTC30m
2026-05-25 CAL838 BKK → TPE May 25, 19:59 UTCMay 25, 23:24 UTC3h 25m
2026-05-25 CAL837 TPE → BKK May 25, 15:00 UTCMay 25, 18:15 UTC3h 15m
2026-05-25 CAL852 CNX → TPE May 25, 06:40 UTCMay 25, 08:10 UTC1h 30m
2026-05-25 CAL852 CNX → TPE May 25, 04:50 UTCMay 25, 05:05 UTC15m
2026-05-25 CAL851 TPE → CNX May 25, 02:10 UTCMay 25, 02:55 UTC45m
2026-05-24 CAL851 TPE → CNX May 24, 23:40 UTCMay 24, 23:46 UTC6m
2026-05-24 CAL916 HKG → TPE May 24, 09:50 UTCMay 24, 11:25 UTC1h 35m
2026-05-24 CAL915 TPE → HKG May 24, 07:00 UTCMay 24, 08:20 UTC1h 20m
2026-05-24 CAL151 NGO → TPE May 24, 01:40 UTCMay 24, 04:40 UTC3h 0m
2026-05-23 CAL150 TPE → NGO May 23, 09:25 UTCMay 23, 11:40 UTC2h 15m
2026-05-23 CAL910 HKG → TPE May 23, 06:15 UTCMay 23, 07:45 UTC1h 30m
2026-05-23 CAL909 TPE → HKG May 23, 04:40 UTCMay 23, 04:50 UTC10m
2026-05-23 CAL909 TPE → HKG May 23, 03:20 UTCMay 23, 03:55 UTC35m
2026-05-22 CAL756 SIN → TPE May 22, 21:05 UTCMay 22, 22:40 UTC1h 35m
2026-05-22 CAL755 TPE → SIN May 22, 12:15 UTCMay 22, 16:05 UTC3h 50m
2026-05-22 CAL131 CTS → TPE May 22, 07:05 UTCMay 22, 10:45 UTC3h 40m
2026-05-22 CAL130 TPE → CTS May 22, 00:50 UTCMay 22, 04:35 UTC3h 45m
2026-05-21 CAL129 FUK → TPE May 21, 12:10 UTCMay 21, 12:30 UTC20m
2026-05-21 CAL129 FUK → TPE May 21, 10:30 UTCMay 21, 10:40 UTC10m
2026-05-21 CAL128 TPE → FUK May 21, 08:50 UTCMay 21, 09:00 UTC10m
2026-05-21 CAL128 TPE → FUK May 21, 07:10 UTCMay 21, 07:35 UTC25m
2026-05-21 CAL188 TPE → PUS May 21, 00:40 UTCMay 21, 05:35 UTC4h 55m
2026-05-20 CAL793 TPE → HAN May 20, 07:00 UTCMay 20, 13:50 UTC6h 50m
2026-05-20 MDA991 TPE → TPE May 20, 01:00 UTCMay 20, 05:15 UTC4h 16m
2026-05-19 CAL129 FUK → TPE May 19, 11:55 UTCMay 19, 12:15 UTC20m
2026-05-19 CAL129 FUK → TPE May 19, 10:25 UTCMay 19, 10:35 UTC10m
2026-05-19 CAL128 TPE → FUK May 19, 06:55 UTCMay 19, 07:20 UTC25m
2026-05-19 CAL107 NRT → TPE May 19, 03:25 UTCMay 19, 03:50 UTC25m
2026-05-19 CAL107 NRT → TPE May 19, 00:55 UTCMay 19, 02:05 UTC1h 10m
2026-05-18 CAL106 TPE → NRT May 18, 08:35 UTCMay 18, 11:35 UTC3h 0m
2026-05-18 CAL151 NGO → TPE May 18, 01:05 UTCMay 18, 03:25 UTC2h 20m
2026-05-17 CAL150 TPE → NGO May 17, 09:35 UTCMay 17, 12:10 UTC2h 35m
2026-05-17 CAL852 CNX → TPE May 17, 04:40 UTCMay 17, 07:55 UTC3h 15m

About Mode-S

A Mode-S transponder code (also called an "ICAO 24-bit address" or "hex code") is a 6-character hexadecimal identifier permanently assigned to an aircraft when it's first registered. Unlike callsigns (which change with each flight) or registrations (which can change if an aircraft is sold internationally), the Mode-S address stays with the airframe for the life of the aircraft in that country.

Every ADS-B transmission from an aircraft includes its Mode-S address, making it the most reliable way to identify a specific airframe. Flight-tracking services like Apparatus use the Mode-S address as the primary key for tying position broadcasts, callsigns, and ownership records together.

Prefer a tail-number view? See the B-18118 page for operator, model, and routing details .

Mode-S 899117 frequently asked

What is Mode-S code 899117?
899117 is an ICAO 24-bit transponder address. Allocated to Taiwan. Assigned to B-18118.
Where is Mode-S 899117 registered?
Mode-S code 899117 is allocated to Taiwan (TW). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 899117 broadcasting right now?
Yes. Mode-S 899117 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 899117, octal 42310427, decimal 9,015,575.
What flights does 899117 operate?
Mode-S 899117 has broadcast 20 distinct callsigns, including CAL107, CAL106, CAL189, CAL852, CAL851.